Shingle



F. E. LIETZ SHINGLE Filed Nov. 19, 1924 whether that shingle is lowered more or less out of that position to secure proper alinement' of the" shingles ofeach course, the tongue not showing-through the resulting gaips because it does not'extend beyond the si e edges ofthe flap or the shingle bodlly This arrangement of; the tongue" who y within the bounds of the shingle also guards against bending or breakage of the ton e in handling-and shipment, whi'ch'is lia le to occur when the ,locking..device extends beyond the edges of the shingle, .The rivets or fastenings which, secure the tongue to the corner fla 14:;1d0 not pass throughfthe shingle-bog y fandfiare not; ex osed on the face of th'e' shin le.. The roo is therefore free from unsightly rivet-heads .or similar fastenings; and the shingles are not liable to become unlocked and leaky, as is "the case where such fastening's extend throughthe shingles and areeventually stripped there from by the'lifting action of-winds under their lower corners; g a

Thiscentral vertical position of the looking tongue isalso advantageous in that in fitting the jshi'ngles to the ends and valleys of a .roof, they. may bejcutoif on one side of the tongue, avoiding the necessity of removingthejtongue or' cutting through it.

The tongue isw prefer abl'y securedto the 1 back} of. the flap or thatside facingthe back as ofthe shingle; as shown'in' Figs. 1,- 2, 3 and 4, but if desired; it may be applied to the.

facexofthe flapas shown at 16-i n Figs. 5

and 6. In either case, the tongue maybe secured to the flap by appro riate fastenmgs.

I c aim as 'my invention a L'Ashingle having a corner-fla on i(, underside and a locking tonguesti er than rivets 18 or other eyond said flap carried by the same, said tongue ex- I V tending lengthwise of said flap and itsv fre'e ed 2. A sh ngle. composed. of composition roofing and having"a-thickening flap on the underside. of its lower corner, and a locking tongue of stifl' materialcarried by said flap and extending upwardly beyond its free edge andadapted jto pass under the side edges-of underlying shm les. V 3. A shingle: compose 'officompositio'n roofing and having a flap on the underside 1 of its lower corner, said flap'being of sub stantially the same thickness as the shingles body, and a relatively stiif lockin tongue thinner than saidflap carried by t e same, said tongue extending upwardly beyond said adapted to' pass under the 7 side edges of underlying shingles.

4. A shingle composed of composition roofing and having a thickening flap on the underside of its lower corner, and a relatively thin locking tongue of stifi material applied to said flap on the side facing the back of the shingle, said tongue being arranged centrally and vertically of theflap and extending upwardly beyond its free edge I ZFELIIX E. LIETZ. 

